@article{CRMATH_2012__350_15-16_741_0,
     author = {Rahm, Alexander D.},
     title = {On a question of {Serre}},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {741--744},
     publisher = {Elsevier},
     volume = {350},
     number = {15-16},
     year = {2012},
     doi = {10.1016/j.crma.2012.09.001},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2012.09.001/}
}